<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片试图 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" clearable @clear="getGoodsList" v-model="queryInfo.query">
            <el-button slot="append" icon="el-icon-search" @click="search"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddPage">添加商品</el-button>
        </el-col>
      </el-row>

      <!-- table表格 -->
      <el-table :data="goodslist" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column label="商品价格(元)" prop="goods_price" width="120px"></el-table-column>
        <el-table-column label="商品重量(kg)" prop="goods_weight" width="120px"></el-table-column>
        <el-table-column label="创建时间" prop="add_time" width="180px">
          <template slot-scope="scope">
            {{scope.row.add_time | dateFormat}}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="250px">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini">编辑</el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum" :page-sizes="[5, 10, 15, 20]" :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper" :total="total" background>
      </el-pagination>
    </el-card>
  </div>
</template>
<script>
  export default {
    data() {
      return {
        // 查询参数对象
        queryInfo: {
          query: '',
          pagenum: 1,
          pagesize: 10
        },
        // 商品列表
        goodslist: [],
        // 总数据条数
      total: 0
      }
    },
    created() {
      this.getGoodsList()
    },
    methods: {
      //解决分页点击后搜索取不到数据bug
      search() {
        if(this.queryInfo.query !== '') {
          this.queryInfo.pagenum = 1
          this.getGoodsList()
        } else {
          this.getGoodsList()
        }
      },
      async getGoodsList() {
        const { data: res } = await this.$http.get('goods', {
        params: this.queryInfo
        
      })

      if (res.meta.status !== 200) {
        return this.$message.error('获取商品列表失败！')
      }

      // this.$message.success('获取商品列表成功！')
      this.goodslist = res.data.goods 
      this.total = res.data.total
      },
      handleSizeChange(newSize) {
        this.queryInfo.pagesize = newSize
        this.getGoodsList()
      },
      handleCurrentChange(newPage) {
        this.queryInfo.pagenum = newPage
        this.getGoodsList()
      },
      // 删除函数
      async removeById(id) {
        const confirmResult= await this.$confirm('此操作将永久删除该商品，是否继续？', '提示',{
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)
        if (confirmResult !== 'confirm') {
          return this.$message.info('已经取消删除！')
        }
        const { data: res } = await this.$http.delete(`goods/${id}`)

        if (res.meta.status !== 200) {
          return this.$message.error('删除失败！')
        }

        this.$message.success('删除成功！')
        this.getGoodsList()
      },
      goAddPage() {
        this.$router.push('/goods/add')
      }
    }
  }
</script>

<style scoped>
  .el-card {
    height: 85vh;
    overflow: scroll;
  }
</style>